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mtd: m25p80: don't probe device which has status of 'disabled'

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On some platforms such as P3060QDS, has multiple spi flashes, but they are
not available at same time, so if their status is 'disabled', which is set
by u-boot, will not be probed.

Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
This commit is contained in:
Shaohui Xie 2011-10-14 15:49:00 +08:00 committed by Artem Bityutskiy
parent 57468a646e
commit 5f94913795
1 changed files with 6 additions and 0 deletions
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6
drivers/mtd/devices/m25p80.c
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@ -30,6 +30,7 @@
#include <linux/mtd/cfi.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/of_platform.h>
#include <linux/spi/spi.h>
#include <linux/spi/flash.h>
@ -823,6 +824,11 @@ static int __devinit m25p_probe(struct spi_device *spi)
unsigned i;
struct mtd_part_parser_data ppdata;
#ifdef CONFIG_MTD_OF_PARTS
if (!of_device_is_available(spi->dev.of_node))
return -ENODEV;
#endif
/* Platform data helps sort out which chip type we have, as
* well as how this board partitions it. If we don't have
* a chip ID, try the JEDEC id commands; they'll work for most